| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked cigarettes | 941 |
72.6%
|
| 2 | I have quit smoking | 197 |
15.2%
|
| 3 | Yes | 141 |
10.9%
|
| 4 | No | 17 |
1.3%
|
| Sysmiss | 18 |